Coating thickness gauge



FIG. 1 is a perspective view of a coating thickness gauge showing my newdesign;

FIG. 2 is a top plan view;

FIG. 3 is a front elevational view;

FIG. 4 is a right side elevational view;

FIG. 5 is a left side elevational view;

FIG. 6 is a rear elevational view;

FIG. 7 is a bottom plan view;

FIG. 8 is a front elevational view, shown in an alternate condition ofuse; and,

FIG. 9 is a front elevational view of a second embodiment showing my newdesign thereof.

The ornamental design for a coating thickness gauge, as shown anddescribed.